EP 0657838 A3 19951122 - Image processing apparatus and method.
Title (en)
Image processing apparatus and method.
Title (de)
Bildverarbeitungsgerät und -verfahren.
Title (fr)
Appareil et méthode de traitment d'images.
Publication
Application
Priority
JP 30914293 A 19931209
Abstract (en)
[origin: EP0657838A2] An image containing characters and lines, which is inputted by a scanner or the like, is binarized and stored in a memory. A thickening process is repeatedly applied on groups of significant bits stored in the memory, until a predetermined condition is fulfilled. After this process, the thickened image is thinned at least a greater number of times than the number of times the thickening process is repeated in order to eliminate lines. As a result, characters are determined to exist at areas where groups composed of remaining significant dots exist, then characters are separated from the input image based on the areas of groups composed of remaining significant dots. <IMAGE>
IPC 1-7
IPC 8 full level
G06V 30/146 (2022.01); H04N 1/40 (2006.01); G06V 30/10 (2022.01)
CPC (source: EP KR US)
G06V 10/10 (2022.01 - KR); G06V 30/146 (2022.01 - EP US); G06V 30/155 (2022.01 - EP US); G06V 30/413 (2022.01 - EP US); G06V 30/10 (2022.01 - EP US)
Citation (search report)
[X] US 5202933 A 19930413 - BLOOMBERG DAN S [US]
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0657838 A2 19950614; EP 0657838 A3 19951122; EP 0657838 B1 20000906; DE 69425807 D1 20001012; JP 3062382 B2 20000710; JP H07160812 A 19950623; KR 0167616 B1 19990115; KR 950020289 A 19950724; US 5974191 A 19991026
DOCDB simple family (application)
EP 94308872 A 19941130; DE 69425807 T 19941130; JP 30914293 A 19931209; KR 19940033248 A 19941208; US 95018097 A 19971014